Home / 14,001.54-21,002.10-5,681.52

Finding the Fourth Proportional to 14,001.54, 21,002.10 and 5,681.52

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Solution

The fourth proportional to 14,001.54, 21,002.10 and 5,681.52 is: 8,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.54 : 21,002.10 = 5,681.52 : x
  2. Step 2: Convert to fraction form
    14,001.54/21,002.10 = 5,681.52/x
  3. Step 3: Cross multiply
    14,001.54x = 21,002.10 × 5,681.52
  4. Step 4: Simplify right side
    14,001.54x = 119,323,851.19
  5. Step 5: Solve for x
    x = 119,323,851.19/14,001.54
  6. Step 6: Final answer
    x = 8,522.19

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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.