Home / 13,254.10-18,285.48-7,585.81

Finding the Fourth Proportional to 13,254.10, 18,285.48 and 7,585.81

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Solution

The fourth proportional to 13,254.10, 18,285.48 and 7,585.81 is: 10,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.10 : 18,285.48 = 7,585.81 : x
  2. Step 2: Convert to fraction form
    13,254.10/18,285.48 = 7,585.81/x
  3. Step 3: Cross multiply
    13,254.10x = 18,285.48 × 7,585.81
  4. Step 4: Simplify right side
    13,254.10x = 138,710,177.04
  5. Step 5: Solve for x
    x = 138,710,177.04/13,254.10
  6. Step 6: Final answer
    x = 10,465.45

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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.