Home / 13,521,347.39-18,659,428.76-7,326,563.15

Finding the Fourth Proportional to 13,521,347.39, 18,659,428.76 and 7,326,563.15

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Solution

The fourth proportional to 13,521,347.39, 18,659,428.76 and 7,326,563.15 is: 10,110,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521,347.39 : 18,659,428.76 = 7,326,563.15 : x
  2. Step 2: Convert to fraction form
    13,521,347.39/18,659,428.76 = 7,326,563.15/x
  3. Step 3: Cross multiply
    13,521,347.39x = 18,659,428.76 × 7,326,563.15
  4. Step 4: Simplify right side
    13,521,347.39x = 136,709,483,078,085.44
  5. Step 5: Solve for x
    x = 136,709,483,078,085.44/13,521,347.39
  6. Step 6: Final answer
    x = 10,110,640.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.