Home / 13,988.10-19,303.50-7,700.46

Finding the Fourth Proportional to 13,988.10, 19,303.50 and 7,700.46

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Solution

The fourth proportional to 13,988.10, 19,303.50 and 7,700.46 is: 10,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.10 : 19,303.50 = 7,700.46 : x
  2. Step 2: Convert to fraction form
    13,988.10/19,303.50 = 7,700.46/x
  3. Step 3: Cross multiply
    13,988.10x = 19,303.50 × 7,700.46
  4. Step 4: Simplify right side
    13,988.10x = 148,645,829.61
  5. Step 5: Solve for x
    x = 148,645,829.61/13,988.10
  6. Step 6: Final answer
    x = 10,626.59

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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.