Home / 10,208.08-15,312.95-2,813.13

Finding the Fourth Proportional to 10,208.08, 15,312.95 and 2,813.13

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Solution

The fourth proportional to 10,208.08, 15,312.95 and 2,813.13 is: 4,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.08 : 15,312.95 = 2,813.13 : x
  2. Step 2: Convert to fraction form
    10,208.08/15,312.95 = 2,813.13/x
  3. Step 3: Cross multiply
    10,208.08x = 15,312.95 × 2,813.13
  4. Step 4: Simplify right side
    10,208.08x = 43,077,315.52
  5. Step 5: Solve for x
    x = 43,077,315.52/10,208.08
  6. Step 6: Final answer
    x = 4,219.93

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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.