Home / 10,886.48-15,019.68-7,528.08

Finding the Fourth Proportional to 10,886.48, 15,019.68 and 7,528.08

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Solution

The fourth proportional to 10,886.48, 15,019.68 and 7,528.08 is: 10,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.48 : 15,019.68 = 7,528.08 : x
  2. Step 2: Convert to fraction form
    10,886.48/15,019.68 = 7,528.08/x
  3. Step 3: Cross multiply
    10,886.48x = 15,019.68 × 7,528.08
  4. Step 4: Simplify right side
    10,886.48x = 113,069,352.61
  5. Step 5: Solve for x
    x = 113,069,352.61/10,886.48
  6. Step 6: Final answer
    x = 10,386.22

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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.