Home / 11,319.15-16,911.71-10,931.57

Finding the Fourth Proportional to 11,319.15, 16,911.71 and 10,931.57

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Solution

The fourth proportional to 11,319.15, 16,911.71 and 10,931.57 is: 16,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.15 : 16,911.71 = 10,931.57 : x
  2. Step 2: Convert to fraction form
    11,319.15/16,911.71 = 10,931.57/x
  3. Step 3: Cross multiply
    11,319.15x = 16,911.71 × 10,931.57
  4. Step 4: Simplify right side
    11,319.15x = 184,871,484.46
  5. Step 5: Solve for x
    x = 184,871,484.46/11,319.15
  6. Step 6: Final answer
    x = 16,332.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.