Home / 14,210.86-19,612.16-7,838.70

Finding the Fourth Proportional to 14,210.86, 19,612.16 and 7,838.70

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Solution

The fourth proportional to 14,210.86, 19,612.16 and 7,838.70 is: 10,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.86 : 19,612.16 = 7,838.70 : x
  2. Step 2: Convert to fraction form
    14,210.86/19,612.16 = 7,838.70/x
  3. Step 3: Cross multiply
    14,210.86x = 19,612.16 × 7,838.70
  4. Step 4: Simplify right side
    14,210.86x = 153,733,838.59
  5. Step 5: Solve for x
    x = 153,733,838.59/14,210.86
  6. Step 6: Final answer
    x = 10,818.05

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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.