Home / 13,320.48-19,949.56-10,528.40

Finding the Fourth Proportional to 13,320.48, 19,949.56 and 10,528.40

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Solution

The fourth proportional to 13,320.48, 19,949.56 and 10,528.40 is: 15,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.48 : 19,949.56 = 10,528.40 : x
  2. Step 2: Convert to fraction form
    13,320.48/19,949.56 = 10,528.40/x
  3. Step 3: Cross multiply
    13,320.48x = 19,949.56 × 10,528.40
  4. Step 4: Simplify right side
    13,320.48x = 210,036,947.50
  5. Step 5: Solve for x
    x = 210,036,947.50/13,320.48
  6. Step 6: Final answer
    x = 15,767.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.