Home / 15,108.18-20,848.32-9,442.62

Finding the Fourth Proportional to 15,108.18, 20,848.32 and 9,442.62

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Solution

The fourth proportional to 15,108.18, 20,848.32 and 9,442.62 is: 13,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.18 : 20,848.32 = 9,442.62 : x
  2. Step 2: Convert to fraction form
    15,108.18/20,848.32 = 9,442.62/x
  3. Step 3: Cross multiply
    15,108.18x = 20,848.32 × 9,442.62
  4. Step 4: Simplify right side
    15,108.18x = 196,862,763.40
  5. Step 5: Solve for x
    x = 196,862,763.40/15,108.18
  6. Step 6: Final answer
    x = 13,030.21

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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.