Home / 15,003.30-20,705.65-9,038.26

Finding the Fourth Proportional to 15,003.30, 20,705.65 and 9,038.26

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Solution

The fourth proportional to 15,003.30, 20,705.65 and 9,038.26 is: 12,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.30 : 20,705.65 = 9,038.26 : x
  2. Step 2: Convert to fraction form
    15,003.30/20,705.65 = 9,038.26/x
  3. Step 3: Cross multiply
    15,003.30x = 20,705.65 × 9,038.26
  4. Step 4: Simplify right side
    15,003.30x = 187,142,973.81
  5. Step 5: Solve for x
    x = 187,142,973.81/15,003.30
  6. Step 6: Final answer
    x = 12,473.45

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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.