Home / 13,807.10-19,031.04-9,768.71

Finding the Fourth Proportional to 13,807.10, 19,031.04 and 9,768.71

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Solution

The fourth proportional to 13,807.10, 19,031.04 and 9,768.71 is: 13,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.10 : 19,031.04 = 9,768.71 : x
  2. Step 2: Convert to fraction form
    13,807.10/19,031.04 = 9,768.71/x
  3. Step 3: Cross multiply
    13,807.10x = 19,031.04 × 9,768.71
  4. Step 4: Simplify right side
    13,807.10x = 185,908,615.60
  5. Step 5: Solve for x
    x = 185,908,615.60/13,807.10
  6. Step 6: Final answer
    x = 13,464.72

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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.