Home / 15,730.60-21,706.50-9,018.04

Finding the Fourth Proportional to 15,730.60, 21,706.50 and 9,018.04

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Solution

The fourth proportional to 15,730.60, 21,706.50 and 9,018.04 is: 12,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.60 : 21,706.50 = 9,018.04 : x
  2. Step 2: Convert to fraction form
    15,730.60/21,706.50 = 9,018.04/x
  3. Step 3: Cross multiply
    15,730.60x = 21,706.50 × 9,018.04
  4. Step 4: Simplify right side
    15,730.60x = 195,750,085.26
  5. Step 5: Solve for x
    x = 195,750,085.26/15,730.60
  6. Step 6: Final answer
    x = 12,443.90

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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.