Home / 13,988.26-19,303.93-7,700.76

Finding the Fourth Proportional to 13,988.26, 19,303.93 and 7,700.76

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Solution

The fourth proportional to 13,988.26, 19,303.93 and 7,700.76 is: 10,627.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.26 : 19,303.93 = 7,700.76 : x
  2. Step 2: Convert to fraction form
    13,988.26/19,303.93 = 7,700.76/x
  3. Step 3: Cross multiply
    13,988.26x = 19,303.93 × 7,700.76
  4. Step 4: Simplify right side
    13,988.26x = 148,654,931.99
  5. Step 5: Solve for x
    x = 148,654,931.99/13,988.26
  6. Step 6: Final answer
    x = 10,627.12

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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.