Home / 10,063.12-15,087.12-5,130.40

Finding the Fourth Proportional to 10,063.12, 15,087.12 and 5,130.40

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Solution

The fourth proportional to 10,063.12, 15,087.12 and 5,130.40 is: 7,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,063.12 : 15,087.12 = 5,130.40 : x
  2. Step 2: Convert to fraction form
    10,063.12/15,087.12 = 5,130.40/x
  3. Step 3: Cross multiply
    10,063.12x = 15,087.12 × 5,130.40
  4. Step 4: Simplify right side
    10,063.12x = 77,402,960.45
  5. Step 5: Solve for x
    x = 77,402,960.45/10,063.12
  6. Step 6: Final answer
    x = 7,691.75

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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.