Home / 15,128.34-22,695.93-4,740.18

Finding the Fourth Proportional to 15,128.34, 22,695.93 and 4,740.18

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Solution

The fourth proportional to 15,128.34, 22,695.93 and 4,740.18 is: 7,111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.34 : 22,695.93 = 4,740.18 : x
  2. Step 2: Convert to fraction form
    15,128.34/22,695.93 = 4,740.18/x
  3. Step 3: Cross multiply
    15,128.34x = 22,695.93 × 4,740.18
  4. Step 4: Simplify right side
    15,128.34x = 107,582,793.47
  5. Step 5: Solve for x
    x = 107,582,793.47/15,128.34
  6. Step 6: Final answer
    x = 7,111.34

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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.