Home / 13,130.12-19,555.90-13,066.52

Finding the Fourth Proportional to 13,130.12, 19,555.90 and 13,066.52

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Solution

The fourth proportional to 13,130.12, 19,555.90 and 13,066.52 is: 19,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.12 : 19,555.90 = 13,066.52 : x
  2. Step 2: Convert to fraction form
    13,130.12/19,555.90 = 13,066.52/x
  3. Step 3: Cross multiply
    13,130.12x = 19,555.90 × 13,066.52
  4. Step 4: Simplify right side
    13,130.12x = 255,527,558.47
  5. Step 5: Solve for x
    x = 255,527,558.47/13,130.12
  6. Step 6: Final answer
    x = 19,461.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.