Home / 15,002.48-20,699.04-9,700.40

Finding the Fourth Proportional to 15,002.48, 20,699.04 and 9,700.40

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Solution

The fourth proportional to 15,002.48, 20,699.04 and 9,700.40 is: 13,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.48 : 20,699.04 = 9,700.40 : x
  2. Step 2: Convert to fraction form
    15,002.48/20,699.04 = 9,700.40/x
  3. Step 3: Cross multiply
    15,002.48x = 20,699.04 × 9,700.40
  4. Step 4: Simplify right side
    15,002.48x = 200,788,967.62
  5. Step 5: Solve for x
    x = 200,788,967.62/15,002.48
  6. Step 6: Final answer
    x = 13,383.72

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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.