Home / 10,159.40-15,239.10-4,975.40

Finding the Fourth Proportional to 10,159.40, 15,239.10 and 4,975.40

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Solution

The fourth proportional to 10,159.40, 15,239.10 and 4,975.40 is: 7,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.40 : 15,239.10 = 4,975.40 : x
  2. Step 2: Convert to fraction form
    10,159.40/15,239.10 = 4,975.40/x
  3. Step 3: Cross multiply
    10,159.40x = 15,239.10 × 4,975.40
  4. Step 4: Simplify right side
    10,159.40x = 75,820,618.14
  5. Step 5: Solve for x
    x = 75,820,618.14/10,159.40
  6. Step 6: Final answer
    x = 7,463.10

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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.