Home / 7,638.46-10,547.35-4,810.40

Finding the Fourth Proportional to 7,638.46, 10,547.35 and 4,810.40

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Solution

The fourth proportional to 7,638.46, 10,547.35 and 4,810.40 is: 6,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.46 : 10,547.35 = 4,810.40 : x
  2. Step 2: Convert to fraction form
    7,638.46/10,547.35 = 4,810.40/x
  3. Step 3: Cross multiply
    7,638.46x = 10,547.35 × 4,810.40
  4. Step 4: Simplify right side
    7,638.46x = 50,736,907.68
  5. Step 5: Solve for x
    x = 50,736,907.68/7,638.46
  6. Step 6: Final answer
    x = 6,642.30

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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.