Home / 13,528.40-18,669.28-7,560.32

Finding the Fourth Proportional to 13,528.40, 18,669.28 and 7,560.32

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Solution

The fourth proportional to 13,528.40, 18,669.28 and 7,560.32 is: 10,433.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.40 : 18,669.28 = 7,560.32 : x
  2. Step 2: Convert to fraction form
    13,528.40/18,669.28 = 7,560.32/x
  3. Step 3: Cross multiply
    13,528.40x = 18,669.28 × 7,560.32
  4. Step 4: Simplify right side
    13,528.40x = 141,145,618.72
  5. Step 5: Solve for x
    x = 141,145,618.72/13,528.40
  6. Step 6: Final answer
    x = 10,433.29

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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.