Home / 15,564.04-21,479.22-9,984.52

Finding the Fourth Proportional to 15,564.04, 21,479.22 and 9,984.52

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Solution

The fourth proportional to 15,564.04, 21,479.22 and 9,984.52 is: 13,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,564.04 : 21,479.22 = 9,984.52 : x
  2. Step 2: Convert to fraction form
    15,564.04/21,479.22 = 9,984.52/x
  3. Step 3: Cross multiply
    15,564.04x = 21,479.22 × 9,984.52
  4. Step 4: Simplify right side
    15,564.04x = 214,459,701.67
  5. Step 5: Solve for x
    x = 214,459,701.67/15,564.04
  6. Step 6: Final answer
    x = 13,779.18

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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.