Home / 13,509.16-20,263.53-6,931.55

Finding the Fourth Proportional to 13,509.16, 20,263.53 and 6,931.55

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Solution

The fourth proportional to 13,509.16, 20,263.53 and 6,931.55 is: 10,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.16 : 20,263.53 = 6,931.55 : x
  2. Step 2: Convert to fraction form
    13,509.16/20,263.53 = 6,931.55/x
  3. Step 3: Cross multiply
    13,509.16x = 20,263.53 × 6,931.55
  4. Step 4: Simplify right side
    13,509.16x = 140,457,671.37
  5. Step 5: Solve for x
    x = 140,457,671.37/13,509.16
  6. Step 6: Final answer
    x = 10,397.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.