Home / 13,988.48-19,303.66-7,700.84

Finding the Fourth Proportional to 13,988.48, 19,303.66 and 7,700.84

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Solution

The fourth proportional to 13,988.48, 19,303.66 and 7,700.84 is: 10,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.48 : 19,303.66 = 7,700.84 : x
  2. Step 2: Convert to fraction form
    13,988.48/19,303.66 = 7,700.84/x
  3. Step 3: Cross multiply
    13,988.48x = 19,303.66 × 7,700.84
  4. Step 4: Simplify right side
    13,988.48x = 148,654,397.07
  5. Step 5: Solve for x
    x = 148,654,397.07/13,988.48
  6. Step 6: Final answer
    x = 10,626.92

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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.