Home / 10,218.89-15,315.51-4,368.62

Finding the Fourth Proportional to 10,218.89, 15,315.51 and 4,368.62

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Solution

The fourth proportional to 10,218.89, 15,315.51 and 4,368.62 is: 6,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.89 : 15,315.51 = 4,368.62 : x
  2. Step 2: Convert to fraction form
    10,218.89/15,315.51 = 4,368.62/x
  3. Step 3: Cross multiply
    10,218.89x = 15,315.51 × 4,368.62
  4. Step 4: Simplify right side
    10,218.89x = 66,907,643.30
  5. Step 5: Solve for x
    x = 66,907,643.30/10,218.89
  6. Step 6: Final answer
    x = 6,547.45

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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.