Home / 10,113.81-13,956.85-5,637.46

Finding the Fourth Proportional to 10,113.81, 13,956.85 and 5,637.46

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Solution

The fourth proportional to 10,113.81, 13,956.85 and 5,637.46 is: 7,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.81 : 13,956.85 = 5,637.46 : x
  2. Step 2: Convert to fraction form
    10,113.81/13,956.85 = 5,637.46/x
  3. Step 3: Cross multiply
    10,113.81x = 13,956.85 × 5,637.46
  4. Step 4: Simplify right side
    10,113.81x = 78,681,183.60
  5. Step 5: Solve for x
    x = 78,681,183.60/10,113.81
  6. Step 6: Final answer
    x = 7,779.58

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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.