Home / 13,988.04-19,303.92-7,700.64

Finding the Fourth Proportional to 13,988.04, 19,303.92 and 7,700.64

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Solution

The fourth proportional to 13,988.04, 19,303.92 and 7,700.64 is: 10,627.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.04 : 19,303.92 = 7,700.64 : x
  2. Step 2: Convert to fraction form
    13,988.04/19,303.92 = 7,700.64/x
  3. Step 3: Cross multiply
    13,988.04x = 19,303.92 × 7,700.64
  4. Step 4: Simplify right side
    13,988.04x = 148,652,538.51
  5. Step 5: Solve for x
    x = 148,652,538.51/13,988.04
  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.