Home / 15,356.56-21,191.52-9,386.08

Finding the Fourth Proportional to 15,356.56, 21,191.52 and 9,386.08

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Solution

The fourth proportional to 15,356.56, 21,191.52 and 9,386.08 is: 12,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.56 : 21,191.52 = 9,386.08 : x
  2. Step 2: Convert to fraction form
    15,356.56/21,191.52 = 9,386.08/x
  3. Step 3: Cross multiply
    15,356.56x = 21,191.52 × 9,386.08
  4. Step 4: Simplify right side
    15,356.56x = 198,905,302.04
  5. Step 5: Solve for x
    x = 198,905,302.04/15,356.56
  6. Step 6: Final answer
    x = 12,952.46

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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.