Home / 10,653.30-15,999.15-10,307.70

Finding the Fourth Proportional to 10,653.30, 15,999.15 and 10,307.70

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Solution

The fourth proportional to 10,653.30, 15,999.15 and 10,307.70 is: 15,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.30 : 15,999.15 = 10,307.70 : x
  2. Step 2: Convert to fraction form
    10,653.30/15,999.15 = 10,307.70/x
  3. Step 3: Cross multiply
    10,653.30x = 15,999.15 × 10,307.70
  4. Step 4: Simplify right side
    10,653.30x = 164,914,438.46
  5. Step 5: Solve for x
    x = 164,914,438.46/10,653.30
  6. Step 6: Final answer
    x = 15,480.13

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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.