Home / 10,366.40-15,513.15-7,085.90

Finding the Fourth Proportional to 10,366.40, 15,513.15 and 7,085.90

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Solution

The fourth proportional to 10,366.40, 15,513.15 and 7,085.90 is: 10,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.40 : 15,513.15 = 7,085.90 : x
  2. Step 2: Convert to fraction form
    10,366.40/15,513.15 = 7,085.90/x
  3. Step 3: Cross multiply
    10,366.40x = 15,513.15 × 7,085.90
  4. Step 4: Simplify right side
    10,366.40x = 109,924,629.59
  5. Step 5: Solve for x
    x = 109,924,629.59/10,366.40
  6. Step 6: Final answer
    x = 10,603.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.