Home / 15,258.48-21,058.53-9,291.00

Finding the Fourth Proportional to 15,258.48, 21,058.53 and 9,291.00

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Solution

The fourth proportional to 15,258.48, 21,058.53 and 9,291.00 is: 12,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.48 : 21,058.53 = 9,291.00 : x
  2. Step 2: Convert to fraction form
    15,258.48/21,058.53 = 9,291.00/x
  3. Step 3: Cross multiply
    15,258.48x = 21,058.53 × 9,291.00
  4. Step 4: Simplify right side
    15,258.48x = 195,654,898.62
  5. Step 5: Solve for x
    x = 195,654,898.62/15,258.48
  6. Step 6: Final answer
    x = 12,822.70

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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.